573138197 has 4 divisors (see below), whose sum is σ = 574468416. Its totient is φ = 571807980.

The previous prime is 573138191. The next prime is 573138227. The reversal of 573138197 is 791831375.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 573138197 - 2¹⁸ = 572876053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (573138191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664463 + ... + 665324.

It is an arithmetic number, because the mean of its divisors is an integer number (143617104).

Almost surely, 2^573138197 is an apocalyptic number.

It is an amenable number.

573138197 is a deficient number, since it is larger than the sum of its proper divisors (1330219).

573138197 is a wasteful number, since it uses less digits than its factorization.

573138197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330218.

The product of its digits is 158760, while the sum is 44.

The square root of 573138197 is about 23940.3048643913. The cubic root of 573138197 is about 830.6532801334.

The spelling of 573138197 in words is "five hundred seventy-three million, one hundred thirty-eight thousand, one hundred ninety-seven".